Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Details)

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Summary of Significant Accounting Policies - Additional Information (Details)
$ in Thousands
 6 Months Ended
Jun. 30, 2017
USD ($)
primary_source
Dec. 31, 2016
USD ($)
Schedule Of Significant Accounting Policies [Line Items]    
Property, equipment, and software, net $ 138,241 $ 130,428
Primary sources of revenue | primary_source 3  
Renewal of additional term license 1 year  
Cumulative effect of adoption of ASU 2016-09   43,843
Deferred tax assets, net $ 63,260 15,665
Length of Expected Customer Benefit of License Fees Billed at Initial Order Date    
Schedule Of Significant Accounting Policies [Line Items]    
Expected length of time of benefit from license fees 3 years  
United States    
Schedule Of Significant Accounting Policies [Line Items]    
Property, equipment, and software, net $ 132,400 125,300
International Subsidiaries    
Schedule Of Significant Accounting Policies [Line Items]    
Property, equipment, and software, net 5,800 5,100
Accounting Standards Update 2016-09, Excess Tax Benefit Component    
Schedule Of Significant Accounting Policies [Line Items]    
Deferred tax assets, net $ 43,800  
Deferred tax assets, valuation allowance   300
Accumulated Deficit    
Schedule Of Significant Accounting Policies [Line Items]    
Cumulative effect of adoption of ASU 2016-09   43,837
Accumulated Deficit | Accounting Standards Update 2016-09, Excess Tax Benefit Component    
Schedule Of Significant Accounting Policies [Line Items]    
Cumulative effect of adoption of ASU 2016-09   $ 43,800